Kogin Kanada mafi tsayi

kogi mafi tsawo a kanada

El kogi mafi tsawo a kanada Kogin Mackenzie ne. Kogi ne wanda ke da tudun ruwa mafi girma a duk ƙasar Kanada kuma yana bi ta cikin yankin da ba kowa ba ne mai ban sha'awa da kuma mafi yawan jama'a. Halayensa sun cancanci sanin tunda yana ɗaya daga cikin manyan koguna a Arewacin Amurka.

A cikin wannan labarin za mu gaya muku duk abin da kuke buƙatar sani game da kogin mafi tsayi a Kanada, asalinsa, tarihinsa, halaye da ƙari mai yawa.

Babban fasali

Kogin Mackenzie yana gudana daga tafkin Great Slave ta arewa maso yammacin Kanada na tsawon kilomita 1075, ko kuma kilomita 4240 idan kogin Finley da Peace sun shiga cikin tsarin. Tare da jimlar yanki na 1.841.000 km2, magudanar ruwa ita ce mafi girma a Kanada. Kogin yana gudana ta wuraren da ba su da yawan jama'a masu ban mamaki na yanayi da kuma dusar ƙanƙara waɗanda ke haifar da ambaliya mai yawa a lokacin lokacin dusar ƙanƙara.

Kogin Mackenzie yana gudana da farko daga kudu maso gabas zuwa arewa maso yamma. Maƙaryata, Aminci, da koguna na Athabasca waɗanda ke samar da tushen su suna ba da ruwa a yankin Forest Plains na arewa maso gabashin British Columbia da arewacin Alberta. Bayan wucewa Great Slave Lake, da Mackenzie River yana karɓar wasu gajerun rafuka na Garkuwar Kanada a dama da tashar da ke gudana daga arewacin Dutsen Rocky (ko Dutsen Rocky) a hagu. Tafkin Great Bear da Athabasca suma suna cikin tsarin. Bayan wucewa ta Arewa maso Yamma Territories, ta fantsama zuwa cikin Beaufort Sea a cikin Arctic Tekun.

Tushen da labarin kasa na kogin Kanada mafi tsayi

Mackenzie River canada

Kogin Kanada mafi tsayi ya tashi daga Great Slave Lake, ya ratsa arewa maso gabashin Kanada kuma yana gudana kudu maso gabas ta Inuvik da Fort Smith. Tushen kogin Mackenzie sune Liard, Aminci, da Kogin Athabasca. Waɗannan koguna suna ban ruwa da gandun daji na arewa maso gabashin British Columbia da arewacin Alberta.

Ketare babban tafkin Slave, kogin Mackenzie yana karɓar a gefen dama na rafukan da aka ambata a sama, wanda ke fitowa daga abin da aka sani da Garkuwar Kanada.

A gefen damansa, kogin da ke kwararowa daga Dutsen Duwatsu shi ne magudanar ruwa. Tafkunan da ake kira Big Bear Lake da Lake Athabasca suma suna cikin tsarin tabkin da ke kwarara cikin kogin Mackenzie.

Kogin Mackenzie yana bi ta wuraren dazuzzuka don yawancin gudu, yana yanke ta cikin dazuzzukan dazuzzukan da ba su da yawa, inda masu tarko, Eskimos, da masu saran itace ba bisa ka'ida ba.

Bayan haye Yankin Arewa maso Yamma na Kanada, kogin Mackenzie ya fantsama cikin Tekun Arctic, amma ya fara samar da delta a cikin Tekun Beaufort tsakanin Alaska, Yankin Arewa maso Yamma na Kanada, da Yukon Territory.

Mulkin Pluvial da tattalin arziki

Ko da yake ba a san matsayinsa ba kuma an tattara bayanan lokaci-lokaci kawai a Fort Simpson da Nordmann, ana iya fahimtar yanayin yanayin ruwa da ingantaccen tabbaci. A gefe guda kuma, tsaunin tsaunuka suna ba shi yanayin yanayin neoglacial, musamman ta hanyar maƙaryata, saboda haka. magudanar ruwa yana da yawa a watan Yuni kuma mafi ƙarancin a cikin Maris; a daya hannun, kasancewar wani babban tafkin a gefen dama, tare da wani yanki na ruwa mai yawa, wanda ya haifar da tasiri mai nauyi (ƙananan sauyin yanayi a cikin yanayi), yana ba kogin Kanada mafi tsawo a cikin kogin Arctic.

Bayanan da ke akwai sun tabbatar da hakan. tun da bambanci da aka lura tsakanin matsakaicin da mafi ƙarancin ƙima shine 7.890 m3 / s. Daga ƴan bayanan da ake da su, an ƙiyasta fitar da shi zuwa cikin gaɓar ya kai kusan 15.000 m3/s. A lokacin ambaliyar ruwa.

Kogin ya ratsa wuraren da ke cike da dazuzzukan boreal kuma ba su da yawa. Yana da yankin Eskimos, masu tarko da fursunoni. Kwanan nan an gano ma'auni mai albarka a kusa da tafkin Great Bear kuma an sami ma'adinan uranium a kusa da tafkin Athabasca, wanda ya haifar da cibiyoyin yawan jama'a.

Geology na kogin mafi tsayi a Kanada

kogi mafi tsayi a kanada

Har zuwa lokacin ƙanƙara na ƙarshe kusan shekaru 30.000 da suka gabata, yawancin arewacin Kanada an binne shi a ƙarƙashin babban takardar kankara na Laurentide. Manya-manyan sojojin Laurentide da magabata gaba daya sun binne abin da ke yanzu Mackenzie Basin a karkashin mil na kankara tare da karkatar da bangaren gabashin kwarin zuwa mafi girman yiwuwar. Lokacin da dusar ƙanƙara ta yanke na ƙarshe. ya bar bayan wani tafkin mai tsawon kilomita 1.100 bayan dusar ƙanƙara, Lake McConnell, dauke da Big Bear, Babban Bawa, da tabkunan Athabasca.

Kogin Mackenzie na yanzu yana da ƙanƙanta a yanayin ƙasa: An kafa tashar ta ba fiye da ƴan shekaru dubu da suka wuce, lokacin da dusar ƙanƙara ta janye. Kafin zamanin Ice, kogin Peel guda ɗaya ne kawai ya ratsa cikin abin da yake yanzu Mackenzie Delta zuwa Tekun Arctic. Sauran yankunan kogin McKenzie sun haɗu don samar da kogin Bell, wanda ke gudana gabas zuwa Hudson Bay. A lokacin lokacin dusar ƙanƙara, nauyin takardar kankara ya damu da yanayin yanayin arewacin Kanada har zuwa lokacin da kankara ta koma baya, an kama tsarin Mackenzie a ƙananan tuddai a arewa maso yamma, wanda ya kafa hanyar da ke gudana yanzu zuwa Pole ta Arewa.

Ruwan ruwan kogi da sauran shaidun zaizayar ƙasa sun nuna cewa a ƙarshen Pleistocene, kimanin shekaru 13.000 da suka wuce. Ambaliyar ruwan dusar ƙanƙara ɗaya ko fiye ta tafi da mashigar Mackenzie Tafkin Agassiz ne ya haifar da shi, wanda ya kafa yamma da manyan tabkuna na yanzu da aka samu ta hanyar narkewar kankara. An yi imanin cewa wannan al'amari ya canza magudanar ruwa a cikin Tekun Arctic, wanda ya haifar da canjin yanayi kwatsam a cikin shekaru 1.300, wanda aka sani da lokacin Dryas.

Mackenzie yana ɗaukar adadin laka mai yawa, yana aika kusan tan miliyan 128 a shekara zuwa yankinta. Kogin Liard kadai ya kai kashi 32 cikin dari na jimlar. da kuma kogin Peel kusan kashi 20 cikin dari. Mahimmanci duk abubuwan da aka samu sun fito ne daga yankin da ke gangarowa na Fort Providence saboda ruwan sama ya makale a cikin Babban Tekun Slave.

Ina fatan cewa tare da wannan bayanin zaku iya ƙarin koyo game da kogin mafi tsayi a Kanada da halayensa.


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